BROADCAST RANGING MESSAGES FOR WLAN RTT MEASUREMENTS

    公开(公告)号:US20170086086A1

    公开(公告)日:2017-03-23

    申请号:US14862985

    申请日:2015-09-23

    CPC classification number: H04W24/10 H04L43/0864 H04W64/00 H04W72/005

    Abstract: In one aspect, a method performed by an access point in a wireless local area network (WLAN), includes receiving a first ranging request message from a first device and monitoring for a second ranging request message from a second device on a channel of the WLAN. The first ranging request message includes a device identifier of the first device and the second ranging request message includes a device identifier of the second device. In response to receiving the second ranging request message, the access point combines the device identifier of the first device, first timing information associated with the first ranging request message, the device identifier of the second device, and second timing information associated with the second ranging request message into a single ranging response message. The access point then broadcasts the single ranging response message on the channel of the WLAN.

    CROWDSOURCING BASED ON BASE STATION ALMANAC QUALITY
    22.
    发明申请
    CROWDSOURCING BASED ON BASE STATION ALMANAC QUALITY 审中-公开
    基于基站ALMANAC质量的测量

    公开(公告)号:US20160219551A1

    公开(公告)日:2016-07-28

    申请号:US15085873

    申请日:2016-03-30

    Abstract: Systems, apparatus and methods for a mobile device and a base station almanac server to throttle crowdsourcing information are presented. The crowdsourcing information may be used to improve a location of a base station in a base station almanac. A base station almanac is received from a base station almanac server. Crowdsourcing information for at least one base station is collected, including identifying an identifier for each base station and determining a position estimate of the mobile device for each base station. A crowdsourcing throttle is determined based on the base station almanac and the crowdsourcing information is sent to the base station almanac server based on the crowdsourcing throttle.

    Abstract translation: 介绍了移动设备和基站历书服务器的系统,设备和方法,以节省众包信息。 众包信息可用于改进基站历书中基站的位置。 从基站历书服务器接收基站历书。 收集用于至少一个基站的众包信息,包括识别每个基站的标识符并且确定每个基站的移动设备的位置估计。 基于基站历书确定众包节流,并且基于众包节流将群众信息发送到基站历书服务器。

    LOW POWER POSITIONING TECHNIQUES FOR MOBILE DEVICES
    23.
    发明申请
    LOW POWER POSITIONING TECHNIQUES FOR MOBILE DEVICES 有权
    用于移动设备的低功率定位技术

    公开(公告)号:US20150123847A1

    公开(公告)日:2015-05-07

    申请号:US14480396

    申请日:2014-09-08

    CPC classification number: G01S19/34 G01S19/06 G01S19/24

    Abstract: Techniques for managing power consumption of a Global Navigation Satellite System (GNSS) receiver of a mobile device are provided. These techniques include a method that includes deriving a GNSS search window for the GNSS receiver based on a position uncertainty (PUNC) and a time uncertainty (TUNC), selecting a GNSS search mode based on the GNSS search window and resources available for searching for signals from GNSS satellite vehicles (SVs), wherein an estimated power consumption associated with execution of a GNSS search associated with the GNSS search mode does not exceed a power consumption limit specified for the GNSS receiver conducting the GNSS search using the GNSS search mode, and estimating a position of the mobile device.

    Abstract translation: 提供了用于管理移动设备的全球导航卫星系统(GNSS)接收机的功耗的技术。 这些技术包括一种方法,其包括基于位置不确定度(PUNC)和时间不确定性(TUNC)导出GNSS接收机的GNSS搜索窗口,基于GNSS搜索窗口选择GNSS搜索模式和可用于搜索信号的资源 来自GNSS卫星车辆(SV),其中与执行与GNSS搜索模式相关联的GNSS搜索相关联的估计功率消耗不超过为使用GNSS搜索模式进行GNSS搜索的GNSS接收器指定的功耗限制,并且估计 移动设备的位置。

    OSCILLATING MOBILE DEVICE POSITION DETERMINATION
    24.
    发明申请
    OSCILLATING MOBILE DEVICE POSITION DETERMINATION 审中-公开
    振动移动设备位置确定

    公开(公告)号:US20130328726A1

    公开(公告)日:2013-12-12

    申请号:US13797651

    申请日:2013-03-12

    CPC classification number: G01S5/02 G01S5/021 G01S19/19 G01S19/40

    Abstract: A method in a mobile device includes: receiving location signals at the mobile device; measuring sensor data at the mobile device; determining an oscillation rate of the mobile device from the sensor data; in response to the oscillation rate of the mobile device being undesirable, at least one of: (1) determining a desired sampling rate based on the oscillation rate, the desired sampling rate being different from the oscillation rate; and sampling the location signals at the mobile device at the desired sampling rate; (2) sampling the location signals at the mobile device at a randomized sampling rate; (3) disabling a power improvement technique; (4) increasing filtering of determined course information; (5) reducing a nominal filter bandwidth; or (6) increasing a present sampling rate of the location signals to satisfy Nyquist criteria for the oscillation rate; and determining the position associated with the mobile device using the location signals.

    Abstract translation: 移动设备中的方法包括:在移动设备处接收位置信号; 在移动设备处测量传感器数据; 从所述传感器数据确定所述移动设备的振荡速率; 响应于移动设备的振荡速率是不期望的,以下至少之一:(1)基于振荡速率确定期望的采样率,期望的采样速率不同于振荡速率; 并以所需的采样速率对移动设备处的位置信号进行采样; (2)以随机抽样率对移动装置处的位置信号进行采样; (3)禁用电力改进技术; (4)增加过滤确定的课程信息; (5)降低标称滤波器带宽; 或(6)增加位置信号的当前采样率以满足振荡速率的奈奎斯特准则; 以及使用所述位置信号确定与所述移动设备相关联的位置。

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